Least and Most Polluting Cars, 2007

The ACEEE's Green Book®, a buyer's guide to environmentally friendly passenger vehicles, rates cars according to their emissions and fuel consumption, and publishes an annual list of the “greenest” and “meanest” (i.e., most polluting).

Greenest vehicles MPG:
city
MPG:
hwy.
Green1
score
 1. Honda Civic GX 28 39 57
 2. Toyota Prius 60 51 55
 3. Honda Civic Hybrid 49 51 53
 4. Nissan Altima Hybrid 42 36 48
 5. Toyota Yaris 34 40 47
 6. Toyota Corolla 32 41 46
 7. Toyota Camry Hybrid 40 38 46
 8. Honda Fit 33 38 45
 9. Kia Rio/Rio 5 32 35 45
10. Hyundai Accent 32 35 45
Meanest vehicles MPG:
city
MPG:
hwy.
Green1
score
 1. Volkswagen Touareg 17 22 14
 2. Mercedes-Benz GL320 CDI 20 25 16
 3. Lamborghini Murcielago 9 14 17
 4. Jeep Grand Cherokee 20 24 17
 5. Bentley Arnage RL 10 15 18
 6. Mercedes-Benz R320 CDI 21 28 18
 7. Mercedes-Benz ML320 CDI 21 27 18
 8. Maybach 57 S / 62 S 11 17 18
 9. Bentley Azure 11 16 18
10. Ford F-250 13 17 19
NOTE: MPG = miles per gallon. 1. The green score runs on a scale from 0 to 100. The top vehicle this year scored a 57, and the worst gas-guzzler scored 14. The score is based on automakers' test results for fuel economy and emissions as reported to the EPA, as well as an estimate of pollution from vehicle manufacturing, from the production and distribution of fuel, and from vehicle tailpipes. It also factors in air pollution. Source: Web: American Council for an Energy-Efficient Economy (ACEEE).

Most Expensive Cars, 2006 Transportation Most and Least Polluting Cars, 2008